Toxicology Screen
Alternate Names : Tox Screen
What do the test results mean?
Normal values for toxicology screens depend on the institution performing the tests. In general, the following values apply:
There should be no illegal drugs in the blood or urine.
There are acceptable levels for over-the-counter medications. These are
called therapeutic levels.
There should be no alcohol.
Cigarette smoking may affect some test results.
The presence of nonprescription drugs may show unapproved drug use.
Specific tests can show the drug used.
High alcohol levels may show
intoxication.
Commonly abused drugs that may be detected in the urine include:
marijuana, or pot
cocaine
phencyclidine, or PCP
amphetamines
morphine, heroin, and codeine
barbiturates
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